(19)

(11)

EP 4 770 972 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24860674.1 (22) Date of filing: 29.07.2024

(51) International Patent Classification (IPC):  C03C 17/36(2006.01) C03C 4/00(2006.01) (52) Cooperative Patent Classification (CPC): B32B 2307/418; B32B 2419/00; B32B 17/06; B32B 17/10036; B32B 17/10192; B32B 17/10229; B32B 17/10449; B32B 17/10403; B32B 17/10761; B32B 17/1077; B32B 17/10788; B32B 2307/212; B32B 2307/20; B32B 2307/412; B32B 2457/00 (86) International application number: PCT/US2024/040063 (87) International publication number: WO 2025/049024 (06.03.2025 Gazette 2025/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 28.08.2023 US 202363579237 P 24.01.2024 US 202463624364 P (71) Applicant: Labforinvention Corp Fremont, California 94538 (US)	(72) Inventor: DING, Guowen Fremont, California 94538 (US) (74) Representative: Russell, Iain Matthew  Russell IP Limited Fetcham Park House Lower Road, Fetcham Leatherhead, Surrey KT22 9HD Leatherhead, Surrey KT22 9HD (GB)